Feeding and storing system for liquid materials

Abstract

The utility model belongs to the technical field of feeding and storing, and particularly relates to a feeding and storing system for liquid materials. Aiming at the problem that the actual feeding quantity of various raw materials is greatly different from the designed theoretical feeding quantity in the prior art, the utility model provides a feeding and storing system for liquid materials, which comprises a plurality of storing tanks, the storing tanks are communicated with a reaction tank, an intermediate tank is arranged between the storing tanks and the reaction tank, and the intermediate tank is communicated with the storing tanks. One end of the storage tank is communicated with the intermediate tank through a feeding pump, and one end, far away from the storage tank, of the intermediate tank is communicated with the reaction tank through a conveying pump. The intermediate tank is further arranged between the storage tank and the reaction tank, and the actual adding amount of reaction materials can be ensured to be consistent with the designed theoretical feeding amount before reaction by confirming the amount of each raw material in the intermediate tank, so that the reliability of a reaction result is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of feeding and storing materials, and particularly relates to a feeding and storing system for liquid materials. Background Art

[0002] In industrial production, it is a relatively common production process to use a variety of liquid materials for mixed production.

[0003] As Figure 1 shown, it is a commonly used material feeding and mixing process in the prior art. It includes several storage tanks 1, and each storage tank 1 stores a liquid raw material. The liquid raw material is fed into the reaction tank 2 through a feed pump 4 for reaction to obtain the corresponding product. However, in this process, the amounts of various raw materials added into the reaction tank 2 are all controlled by the feed pump 4. However, the accuracy of the feed pump 4 itself is not high, which will cause a large difference between the actual feed amount of various raw materials in the reaction tank 2 and the designed theoretical feed amount, having an adverse impact on the reaction result. If the technical solution of pre-mixing and sample preparation is adopted, the mixing tank used for pre-mixing usually does not have the function of storing the mixed material for a long time and can only be used immediately after preparation, and its application is very limited. Content of the Utility Model

[0004] The purpose of the utility model is to solve the above problems and provide a feeding and storing system for liquid materials.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A feeding and storing system for liquid materials includes several storage tanks, the storage tanks are communicated with a reaction tank, an intermediate tank is further arranged between the storage tanks and the reaction tank, one end of the storage tank is communicated with the intermediate tank through a feed pump, and the end of the intermediate tank far from the storage tank is communicated with the reaction tank through a material transfer pump.

[0007] In the above feeding and storing system for liquid materials, a weighing mechanism for weighing the weight of the storage tank is further arranged at the bottom of the storage tank.

[0008] In the above feeding and storing system for liquid materials, the intermediate tank includes a tank body with a mixing and storage space inside, a feed inlet arranged on the tank body is communicated with the mixing and storage space, the intermediate tank further includes a control valve for controlling the entry or exit of gas into or from the mixing and storage space, and the control valve is fixedly connected to the upper end of the tank body.

[0009] In the above-mentioned feeding and storage system for liquid materials, the control valve includes a valve body with an air passage cavity inside. A valve cover is provided on the valve body, and an air inlet for communicating with an external air source is provided on the valve cover. The air inlet is communicated with the air passage cavity. The control valve further includes an air passage component located in the air passage cavity and slidably and sealingly connected to the valve body. Sliding the air passage component can connect or isolate the air inlet from the mixing and storage space.

[0010] In the above-mentioned feeding and storage system for liquid materials, the air passage component includes a partition plate slidably and sealingly connected to the valve body. The partition plate is connected to a bottom plate through a rod body, and the bottom plate is connected to the valve body through an elastic member. A pressure application hole is further provided on the side wall of the valve body, and the pressure application hole is communicated with the mixing and storage space through a pressure application channel located inside the valve body. Sliding the partition plate can make the pressure application hole located above or below the sliding partition plate.

[0011] In the above-mentioned feeding and storage system for liquid materials, the elastic member is a spring, and one end of the spring is pressed on the bottom plate, and the other end is pressed on the valve body.

[0012] In the above-mentioned feeding and storage system for liquid materials, the air passage component further includes a guiding slider fixedly connected to the outside of the rod body. A guiding groove recessed towards the inside of the valve body is provided on the inner surface of the valve body, and the guiding slider is slidably and sealingly connected in the guiding groove. An exhaust hole penetrating the side wall of the valve body is further provided at the bottom of the guiding groove. Sliding the air passage component can open or close the exhaust hole by the guiding slider.

[0013] In the above-mentioned feeding and storage system for liquid materials, the axis line of the elastic member coincides with the axis line of the air passage component. When the elastic member is in a normal state, the partition plate is located above the pressure application hole, and the exhaust hole is in a state of being closed by the guiding slider.

[0014] In the above-mentioned feeding and storage system for liquid materials, a waterproof and breathable membrane is further provided on the bottom plate.

[0015] In the above-mentioned feeding and storage system for liquid materials, the intermediate tank further includes a driving motor and a stirring rod which are drivingly connected, and one end of the stirring rod extends into the mixing and storage space.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows:

[0017] 1. The present utility model further provides an intermediate tank between the storage tank and the reaction tank. By confirming the amounts of various raw materials in the intermediate tank, the actual addition amount of the reaction materials can be ensured to be consistent with the designed theoretical feeding amount before the reaction, thereby ensuring the reliability of the reaction result.

[0018] 2. The utility model is provided with a control valve that can automatically adjust the entry and discharge of gas in the mixing and storage space, facilitating the long-term maintenance of an anaerobic state inside the intermediate tank, thereby facilitating the temporary storage of materials in the intermediate tank. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the prior art;

[0020] Figure 2 is a schematic structural diagram of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the intermediate tank;

[0022] Figure 4 is a three-dimensional view of the control valve;

[0023] Figure 5 is an exploded view of the control valve;

[0024] Figure 6 is a cross-sectional view of the control valve;

[0025] Figure 7 is a three-dimensional view of the valve body;

[0026] In the figure: storage tank 1, reaction tank 2, intermediate tank 3, feed pump 4, material transfer pump 5, mixing and storage space 31, tank body 32, feed inlet 33, control valve 34, gas passing component 35, pressure application hole 36, exhaust hole 37, drive motor 38, stirring rod 39, gas passing cavity 341, valve body 342, valve cover 343, air inlet 344, partition plate 351, rod body 352, bottom plate 353, elastic member 354, guiding slider 355, guiding groove 356, waterproof and breathable membrane 357. Detailed Embodiments

[0027] The following further elaborates on the present utility model in detail in conjunction with the drawings and specific embodiments.

[0028] As Figure 2 shown, a feeding and storage system for liquid materials includes a plurality of storage tanks 1, the storage tanks 1 are communicated with a reaction tank 2, an intermediate tank 3 is further provided between the storage tanks 1 and the reaction tank 2, one end of the storage tank 1 is communicated with the intermediate tank 3 through a feed pump 4, and the end of the intermediate tank 3 far from the storage tank 1 is communicated with the reaction tank 2 through a material transfer pump 5. Although the materials are premixed at the intermediate tank 3, some reactions require certain reaction conditions, such as specific catalysts or high-temperature and high-pressure reaction conditions. Therefore, only stirring and mixing are carried out in the intermediate tank 3, and without these reaction conditions, the reaction will not occur prematurely. Such reactions can be operated using the feeding and storage system provided in this application.

[0029] In the use of this utility model, various liquid raw materials are respectively stored in the storage tank 1. Each storage tank 1 is correspondingly provided with a feeding pump 4. The feeding pump 4 transports the raw materials in the storage tank 1 into the intermediate tank 3. After confirming the composition of each raw material in the intermediate tank 3, it is then transported into the reaction tank 2 through the material conveying pump 5 for reaction. Therefore, this utility model also provides an intermediate tank 3 between the storage tank 1 and the reaction tank 2. By confirming the amount of each raw material in the intermediate tank 3, the actual addition amount of the reaction materials can be ensured to be consistent with the designed theoretical feeding amount before the reaction, thereby ensuring the reliability of the reaction result.

[0030] Preferably, a weighing mechanism for weighing the weight of the storage tank 1 is further provided at the bottom of the storage tank 1. The weighing mechanism can quickly weigh the weight reduction in the storage tank 1, thereby quickly confirming the amount of raw materials added into the intermediate tank 3.

[0031] As Figure 1 shown, in the prior art, the feeding amount of liquid raw materials is controlled by a feeding pump 4 with low precision. Suppose the two liquid raw materials are raw material A and raw material B respectively, and the goal is to react raw material A and raw material B in equal amounts to obtain product C. If the feeding system in the prior art is used to preset the addition of 500 g of raw material A and 500 g of raw material B for reaction, due to the low precision of the pump itself, the actual amounts added to the reaction tank will vary greatly. For example, actually 400 g of raw material A and 600 g of raw material B will be added to the reaction tank, which will cause the ratio of the reaction raw materials to deviate greatly from the theory and produce a lot of by-product D. The output of the actual obtained product C will decrease, and there is also the problem of how to separate and purify product C from by-product D. However, with the feeding system provided in this application, the amounts of raw material A and raw material B added to the intermediate tank 3 are controlled by a weighing mechanism with higher precision. Therefore, it can be accurately controlled so that the mass ratio of raw material A to raw material B in the intermediate tank 3 is 1:1, and raw material A and raw material B are mixed evenly in the intermediate tank 3 to obtain a mixed raw material. Even if there is still a problem of difficult control of the precision of the subsequent material conveying pump 4, this only reflects on the total amount of the mixed raw material, not on the ratio of the mixed raw material. For example, if it is preset to add 1000 g of the mixed raw material into the reaction tank 2 for reaction, the actual amount added may only be 900 g, but the 900 g of the mixed raw material contains 450 g of raw material A and 450 g of raw material B respectively. Therefore, it can still ensure the reaction to obtain product C without the problem of obtaining by-product D as described above.

[0032] As Figures 3 - 6As shown, the intermediate tank 3 includes a tank body 32 with a mixing and storage space 31 inside. The feed inlet 33 provided on the tank body 32 is in communication with the mixing and storage space 31. The intermediate tank 3 further includes a control valve 34 for controlling the entry or discharge of gas into the mixing and storage space 31. The control valve 34 is fixedly connected to the upper end of the tank body 32. The utility model is provided with a control valve 34 that can automatically regulate the entry and discharge of gas in the mixing and storage space 31, facilitating the intermediate tank 3 to maintain an anaerobic state inside for a long time, thereby facilitating the temporary storage of materials in the intermediate tank 3.

[0033] Specifically, the control valve 34 includes a valve body 342 with a gas passage cavity 341 inside. A valve cover 343 is provided on the valve body 342. An air inlet 344 for communicating with an external gas source is provided on the valve cover 343. The air inlet 344 is in communication with the gas passage cavity 341. The control valve 34 further includes a gas passage component 35 located in the gas passage cavity 341 and slidably and sealingly connected to the valve body 342. Sliding the gas passage component 35 can connect or isolate the air inlet 344 from the mixing and storage space 31.

[0034] Combined Figures 5 - 7 As shown, the gas passage component 35 includes a partition plate 351 slidably and sealingly connected to the valve body 342. The partition plate 351 is connected to a bottom plate 353 through a rod body 352. The bottom plate 353 is connected to the valve body 342 through an elastic member 354. A pressure application hole 36 is further provided on the side wall of the valve body 342. The pressure application hole 36 is in communication with the mixing and storage space 31 through a pressure application channel (not shown in the figure) located inside the valve body 342. Sliding the partition plate 351 can make the pressure application hole 36 located above or below the sliding partition plate 351. The gas passage component 35 further includes a guiding slider 355 fixedly connected to the outside of the rod body 352. A guiding groove 356 recessed towards the inside of the valve body 342 is provided on the inner surface of the valve body 342. The guiding slider 355 is slidably and sealingly connected in the guiding groove 356. An exhaust hole 37 penetrating the side wall of the valve body 342 is further provided at the bottom of the guiding groove 356. Sliding the gas passage component 35 can open or close the exhaust hole 37 by the guiding slider 355. The axis line of the elastic member 354 coincides with the axis line of the gas passage component 35. When the elastic member 354 is in a normal state, the partition plate 351 is located above the pressure application hole 36, and the exhaust hole 37 is in a state of being closed by the guiding slider 355.

[0035] The utility model does not limit the specific selection of the elastic member 354. For example, it can be a spring, and one end of the spring is pressed on the bottom plate 353, and the other end is pressed on the valve body 342.

[0036] Preferably, a waterproof and breathable film 357 is further provided on the bottom plate 353. The waterproof and breathable film 357 can play a role in blocking water and allowing air to pass through, preventing liquids from being carried out with the gas while ensuring smooth gas flow.

[0037] During use, first, the gas in the mixing and storage space 31 is pumped out until it is close to a vacuum state. At this time, there is already a certain pressure difference between the mixing and storage space 31 and the gas passing cavity 341, and the elastic member 354 is in a certain compressed state. The partition plate 351 moves downward by a certain distance, but the partition plate 351 is still above the pressure application hole 36 at this time, which can be achieved by selecting an elastic member 354 with an appropriate elastic coefficient. An external gas source, for example, an inert gas source, enters the gas passing cavity 341 through the air inlet 344, increasing the pressure above the partition plate 351. The partition plate 351 is further compressed downward under pressure, and the elastic member 354 is further compressed. Until the partition plate 351 moves below the pressure application hole 36, at this time, the gas above the partition plate 351 passes through the pressure application hole 36 and flows through the pressure application channel located in the valve body 342 into the mixing and storage space 31, filling the mixing and storage space 31 with inert gas, thereby protecting the liquid raw materials in the mixing and storage space 31. The filling of inert gas causes the air pressure in the mixing and storage space 31 to gradually increase. When the pressure difference between both sides of the partition plate 351 and the elastic force generated by the elastic member 354 are balanced, the partition plate 351 stops moving. When mixing materials, materials are continuously added to the mixing and storage space 31, increasing the gas pressure at the bottom of the partition plate 351. At this time, the partition plate 351 moves upward until the guiding slider 355 opens the exhaust hole 37. At this time, part of the gas in the mixing and storage space 31 can flow into the exhaust hole 37 through the guiding groove 356 or successively through the waterproof and breathable film 357 and the guiding groove 356, and is discharged through the exhaust hole 37, thereby preventing the gas pressure in the mixing and storage space 31 from being too high. After part of the gas is discharged, the pressure below the partition plate 351 decreases, and the partition plate 351 moves downward to re-close the exhaust hole 37.

[0038] As Figure 3 shown, the intermediate tank 3 further includes a driving motor 38 and a stirring rod 39 that are drivingly connected, and one end of the stirring rod 39 extends into the mixing and storage space 31. The driving motor 38 drives the stirring rod 39 to rotate, which can promote the uniform mixing of the liquid substances in the mixing and storage space 31.

[0039] It can be seen that in addition to the function of mixing materials, the intermediate tank 3 also has the function of storing materials for a long time. In this way, a relatively large amount of mixed raw materials can be obtained by mixing at one time during the actual use process. When reacting, a part of the mixed raw materials is extracted each time (since as the reaction amount increases, the control of reaction conditions and the difficulty of post-treatment after the reaction will also become greater and greater. For example, during the process of increasing the reaction amount, the uniformity of heating of the reaction liquid itself and the uniformity of catalyst distribution will become difficult to control and affect the reaction results. Therefore, usually, an upper limit of the reaction amount will be set). Reacting in this way is equivalent to combining the raw material batching steps of multiple reactions. If the intermediate tank 3 is omitted in this application and the mixing is directly carried out in the reaction tank 2 and then the reaction is carried out, the raw material batching operation needs to be carried out before each reaction, which is time-consuming and laborious, especially when there are many types of raw materials.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A feeding and storage system for liquid materials, comprising a plurality of storage tanks (1), and the storage tanks (1) are communicated with a reaction tank (2), characterized in that: An intermediate tank (3) is also provided between the storage tank (1) and the reaction tank (2). One end of the storage tank (1) is connected to the intermediate tank (3) through a feed pump (4), and the end of the intermediate tank (3) far from the storage tank (1) is connected to the reaction tank (2) through a material transfer pump (5). A weighing mechanism for weighing the weight of the storage tank (1) is further provided at the bottom of the storage tank (1). The intermediate tank (3) includes a tank body (32) with a mixing and storage space (31) inside. A feed inlet (33) provided on the tank body (32) is connected to the mixing and storage space (31). The intermediate tank (3) further includes a control valve (34) for controlling the entry or discharge of gas into or from the mixing and storage space (31). The control valve (34) is fixedly connected to the upper end of the tank body (32).

2. The feeding and storage system for liquid materials according to claim 1, wherein: The control valve (34) includes a valve body (342) with a gas passage cavity (341) inside. A valve cover (343) is provided on the valve body (342). An air inlet (344) for connecting to an external gas source is provided on the valve cover (343). The air inlet (344) is connected to the gas passage cavity (341). The control valve (34) further includes a gas passage component (35) located in the gas passage cavity (341) and slidably and sealingly connected to the valve body (342). Sliding the gas passage component (35) can connect or isolate the air inlet (344) from the mixing and storage space (31).

3. The feeding and storage system for liquid materials according to claim 2, characterized in that: The gas passage component (35) includes a partition plate (351) slidably and sealingly connected to the valve body (342). The partition plate (351) is connected to a bottom plate (353) through a rod body (352). The bottom plate (353) is connected to the valve body (342) through an elastic member (354). A pressure application hole (36) is further provided on the side wall of the valve body (342). The pressure application hole (36) is connected to the mixing and storage space (31) through a pressure application channel located inside the valve body (342). Sliding the partition plate (351) can make the pressure application hole (36) located above or below the sliding partition plate (351).

4. The feeding and storage system for liquid materials according to claim 3, wherein: The elastic member (354) is a spring, and one end of the spring is pressed on the bottom plate (353), and the other end is pressed on the valve body (342).

5. The feeding and storage system for liquid materials according to claim 3, wherein: The gas passage component (35) further includes a guiding slider (355) fixedly connected to the outside of the rod body (352). A guiding groove (356) recessed towards the inside of the valve body (342) is provided on the inner surface of the valve body (342). The guiding slider (355) is slidably and sealingly connected in the guiding groove (356). An exhaust hole (37) penetrating the side wall of the valve body (342) is further provided at the bottom of the guiding groove (356). Sliding the gas passage component (35) can open or close the exhaust hole (37) by the guiding slider (355).

6. The feeding and storage system for liquid materials according to claim 5, wherein: The central axis of the gas passage component (35) coincides with the central axis of the elastic member (354). When the elastic member (354) is in a normal state, the partition plate (351) is located above the pressure application hole (36), and the exhaust hole (37) is in a state of being closed by the guiding slider (355).

7. The feeding and storage system for liquid materials according to claim 3, characterized in that: A waterproof and breathable film (357) is further provided on the bottom plate (353).

8. The feeding and storage system for liquid materials according to claim 1, wherein: The intermediate tank (3) further includes a drive motor (38) and a stirring rod (39) which are drivingly connected, and one end of the stirring rod (39) extends into the mixing and storage space (31).

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